TREND 3/16 drill diameter x 1/2 counterbore | CB12-316TC

Trend CB12-316TC Adjustable Counterbore (1/2" / 12.7mm) with 3/16" Drill (4.76mm), TCT

Trend CB12-316TC is an adjustable counterbore designed for recessing bolt and screw heads cleanly, helping you achieve a neat, flush finish in woodworking and sheet materials. The integrated 3/16" drill creates an accurate pilot hole, while the counterbore forms a consistent recess in one set-up.

Built for practical workshop and site use, the CB12-316TC counterbore includes a slow-spiral HSS drill bit and allows depth adjustment to suit your fixing and plug requirements. For best results, set up with the drill flutes aligned to the counterbore flutes and use drilling speeds only.

Key Features

• Counterbore + pilot drill combination: Drills the pilot hole and forms the recess in one operation for efficient, accurate preparation.
• Adjustable depth: Set the counterbore depth to suit your fixing head and any plug or recess requirements.
• Supplied with slow-spiral HSS drill bit: Designed for controlled drilling and clean results in suitable materials.
• Hex key included: Enables straightforward adjustment and set-up.
• TCT counterbore cutting edges: Suitable for abrasive sheet materials such as plywood and particle board, plus plastics.
• Set-up guidance: Align the drill flutes with the counterbore flutes to help maintain a true, clean cut.

Specifications at a glance

Suitable applications

• Recessing bolt and screw heads for a flush finish in wood-based sheet materials.
• Plywood and particle board work where a durable, TCT counterbore is beneficial.
• Drilling and counterboring in abrasive plastics (using drilling speeds only).